Lingonberries contain a lot of naturally occurring benzoic acid, something that industry adds to many preserves and jams to help them keep. The levels are so high that lingonberries just don’t go bad. Thanks to this, there is really no point in boiling them into jam and bottling them; you can just add some sugar for flavour and they will keep in a fairly clean jar at the back of your fridge for years. You can use fresh or frozen berries. It makes no difference to the end result.
Especially in northern Scandinavia and Finland, we eat sugared lingonberries on many things, sweet and savoury. They all seem to benefit from a good scoop of sweet and astringent ruby loveliness.
(makes 650–700g)
500g lingonberries
150–200g sugar
Place the lingonberries and sugar in a large bowl and mix with a spoon. Keep the bowl at room temperature and stir from time to time, until the sugar has dissolved. It should take a while for this to happen, at least overnight. Refrigerate when done.